FIC A360 Audio Subsystem, Keyboard and Pointing Device, Hardware Functional Overview

Hardware Functional Overview

•OZ6933 supports D3cold state PME# wakeup; 3.3Vaux Power; and Zoomed video buffer enable pins

•OZ6860: "Built-in" live video, high throughput, multimedia ZV ports support without additional buffers; 3V card protection during host system suspend with Auto Card VS# resensing; dedicated ZV output port to LCD controller

SmartCardBus™ (OZ711E1/OZ711E2) combines a Smart Card reader and CardBus controller in a single IC. In addition to meeting PC Card standards, SmartCardBus is compliant to Microsoft PC/SC, ISO 7816-1, -2, -3 electrical specifications, standard protocols including T = 0, T = 1, and synchronous and asynchronous formats. SmartCardBus lowers the cost of ownership of e-commerce and corporate security Smart Card applications.

4.12 Audio Subsystem

The audio subsystem is integrated inside the South Bridge chip on the motherboard. Refer to the System Core Logic section of this chapter.

An internal two-way mini speaker and microphone provide the notebook with mobile sound generation and recording capabilities. In addition, a set of 3.5mm bayonet socket (1/8” minijack) connectors allow for external microphone, line inputs, and headphone outputs.

4.13 Keyboard and Pointing Device

The Keyboard Subsystem of the notebook is implemented on the Motherboard and Keyboard Assembly using the Mitsubishi 38867M8 keyboard controller chip and the Phoenix MultiKey/M3886L keyboard controller firmware. This chip controls the internal built-in keyboard, the built-in touchpad pointing device, as well as the external PS/2 keyboard and mouse port. The keyboard controller allows simultaneous use of both the internal and external keyboard and PS/2 mouse.

The A360 membrane keyboard is an 86-key IBM 101-key enhanced compatible keyboard with standard characters and 12 function keys including an embedded numeric keypad. See Chapter 1 for more information.

The pointing device subsystem consists of the built-in Synaptics touch pad pointing device module on the system top cover assembly and a pre-programmed Mitsubishi 38867M8 micro- controller that interfaces the mouse device to the Motherboard. The touch pad module is connected to battery board through a 6-pin FPC cable. An external PS/2 port also supports the use of an external PS/2 compatible mouse where the system automatically detects on system power up and runs both internal and external mouse simultaneously.

The Synatics touch pad, a pointing device for personal computers, detects the position of a finger over a touch-sensitive area. To move the cursor, the user lightly slides a finger over the smooth sensor area. To ‘click’, the user gently taps on the surface.

The ultra-thin module is the thinnest PCB based touchpad available today. It is a capacitive sensor - the finger is detected by measuring its effect on an array of capacitive lines integrated into the PC board. The pad senses both the finger’s position and its contact area (X, Y, and Z). The area of contact is a measure of applied pressure. One side of the module PC board is

FIC A360 Service Manual 4-13